Overview
The vulnerability identified as CVE-2025-5962 poses a significant risk to users of the Lightspeed history service. The flaw allows an unprivileged user on the same system to access and manipulate another user’s chat history, including viewing, deleting, or injecting arbitrary history entries. This can lead to potential system compromise or data leakage, as the attacker can deceive the user into executing harmful actions.
Vulnerability Summary
CVE ID: CVE-2025-5962
Severity: High (7.7 CVSS score)
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: Possible system compromise, data leakage, and unauthorized command execution
Affected Products
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Product | Affected Versions
Lightspeed Chat Service | All versions prior to patch
How the Exploit Works
The exploit works by abusing inter-process communication calls to the history service of Lightspeed. The flaw in access controls allows a local, unprivileged user to manipulate chat history, including viewing, deleting, or injecting arbitrary history entries. The attacker can then deceive the user into executing harmful commands or actions.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited:
# Connect to local history service
connect_to_service("local://lightspeed-history-service")
# Get chat history of user
history = get_history("target_user")
# Inject malicious command into history
inject_to_history("target_user", "rm -rf /*")Please note that this is a conceptual example and the actual exploit may vary depending on the system configuration.
Mitigation
The vendor has released a patch to address this vulnerability. Users should apply this patch as soon as possible to mitigate the risk. As a temporary measure, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and prevent attempts to exploit this vulnerability.
